body {
    font-family: Arial, sans-serif;
    background-color: #fafafa;
    color: #333;
  }
  
  header {
    background-color: #1abc9c;
    padding: 10px 0;
  }
  
  .navbar ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
  }
  
  .navbar ul li {
    margin: 0 15px;
  }
  
  .navbar ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  .navbar ul li a:hover {
    background-color: #34495e;
  }
  
  .portfolio {
    padding: 40px;
    text-align: center;
  }
  
  .portfolio-grid {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
  }
  
  .portfolio-item {
    background-color: #fff;
    padding: 15px;
    width: 30%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: center;
  }
  
  .portfolio-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }
  
  .portfolio-link {
    color: #1abc9c;
    text-decoration: none;
    margin-top: 10px;
    display: block;
  }
  
  footer {
    background-color: #34495e;
    color: white;
    padding: 10px;
    text-align: center;
  }